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Declining trees spell gloom for planet http://apocadocs.com/s.pl?1282790741
LESS rainfall and rising global temperatures are damaging one of the world's best guardians against climate change: trees.
A global study, published in the journal Science, shows that the amount of carbon dioxide being soaked up by the world's forests in the past decade has declined, reversing a 20-year trend.
It diminishes hopes that global warming can be seriously slowed down by the mass planting of trees in carbon sinks. Although plants generally grow bigger as a result of absorbing carbon-enriched air, they need more water and nutrients to do so, and they have been getting less.
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[Read more stories about:
anthropogenic change, carbon sinks, forests, global warming]
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